/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 05:04:33,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 05:04:33,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 05:04:33,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 05:04:33,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 05:04:33,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 05:04:33,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 05:04:33,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 05:04:33,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 05:04:33,415 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 05:04:33,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 05:04:33,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 05:04:33,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 05:04:33,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 05:04:33,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 05:04:33,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 05:04:33,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 05:04:33,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 05:04:33,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 05:04:33,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 05:04:33,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 05:04:33,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 05:04:33,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 05:04:33,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 05:04:33,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 05:04:33,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 05:04:33,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 05:04:33,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 05:04:33,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 05:04:33,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 05:04:33,462 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 05:04:33,463 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 05:04:33,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 05:04:33,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 05:04:33,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 05:04:33,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 05:04:33,469 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 05:04:33,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 05:04:33,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 05:04:33,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 05:04:33,471 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 05:04:33,473 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-19 05:04:33,510 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 05:04:33,510 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 05:04:33,512 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 05:04:33,512 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 05:04:33,512 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 05:04:33,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 05:04:33,513 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 05:04:33,513 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 05:04:33,513 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 05:04:33,513 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 05:04:33,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 05:04:33,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 05:04:33,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 05:04:33,515 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 05:04:33,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 05:04:33,516 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 05:04:33,516 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 05:04:33,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 05:04:33,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 05:04:33,516 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 05:04:33,517 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 05:04:33,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 05:04:33,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 05:04:33,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 05:04:33,517 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 05:04:33,517 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 05:04:33,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 05:04:33,518 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 05:04:33,518 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 05:04:33,518 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3; [2020-08-19 05:04:33,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 05:04:33,825 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 05:04:33,829 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 05:04:33,830 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 05:04:33,831 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 05:04:33,831 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c [2020-08-19 05:04:33,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1fd22c7c7/ba2d77ea892142939c42c07ea7c43640/FLAG48dde730b [2020-08-19 05:04:34,431 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 05:04:34,432 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c [2020-08-19 05:04:34,451 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1fd22c7c7/ba2d77ea892142939c42c07ea7c43640/FLAG48dde730b [2020-08-19 05:04:34,757 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1fd22c7c7/ba2d77ea892142939c42c07ea7c43640 [2020-08-19 05:04:34,767 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 05:04:34,769 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 05:04:34,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 05:04:34,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 05:04:34,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 05:04:34,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 05:04:34" (1/1) ... [2020-08-19 05:04:34,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22b9b1b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:04:34, skipping insertion in model container [2020-08-19 05:04:34,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 05:04:34" (1/1) ... [2020-08-19 05:04:34,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 05:04:34,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 05:04:35,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 05:04:35,263 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 05:04:35,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 05:04:35,430 INFO L208 MainTranslator]: Completed translation [2020-08-19 05:04:35,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:04:35 WrapperNode [2020-08-19 05:04:35,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 05:04:35,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 05:04:35,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 05:04:35,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 05:04:35,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:04:35" (1/1) ... [2020-08-19 05:04:35,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:04:35" (1/1) ... [2020-08-19 05:04:35,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:04:35" (1/1) ... [2020-08-19 05:04:35,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:04:35" (1/1) ... [2020-08-19 05:04:35,505 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:04:35" (1/1) ... [2020-08-19 05:04:35,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:04:35" (1/1) ... [2020-08-19 05:04:35,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:04:35" (1/1) ... [2020-08-19 05:04:35,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 05:04:35,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 05:04:35,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 05:04:35,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 05:04:35,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:04:35" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 05:04:35,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 05:04:35,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 05:04:35,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-19 05:04:35,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-19 05:04:35,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-19 05:04:35,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-19 05:04:35,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-19 05:04:35,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-19 05:04:35,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-19 05:04:35,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-08-19 05:04:35,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-19 05:04:35,602 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-19 05:04:35,602 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-19 05:04:35,603 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-19 05:04:35,603 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-19 05:04:35,603 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-19 05:04:35,603 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-19 05:04:35,603 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-19 05:04:35,604 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-19 05:04:35,604 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-19 05:04:35,604 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-19 05:04:35,604 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-19 05:04:35,604 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-19 05:04:35,604 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 05:04:35,605 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-19 05:04:35,605 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-19 05:04:35,605 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-19 05:04:35,605 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-19 05:04:35,605 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-19 05:04:35,606 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-19 05:04:35,606 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-19 05:04:35,606 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-19 05:04:35,606 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-08-19 05:04:35,606 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-19 05:04:35,606 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-19 05:04:35,607 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-19 05:04:35,607 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-19 05:04:35,607 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-19 05:04:35,607 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-19 05:04:35,607 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-19 05:04:35,607 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-19 05:04:35,608 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-19 05:04:35,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 05:04:35,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 05:04:35,608 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-19 05:04:35,608 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-19 05:04:35,608 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 05:04:35,608 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 05:04:35,609 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-19 05:04:35,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 05:04:35,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 05:04:35,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 05:04:35,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 05:04:35,609 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-19 05:04:35,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 05:04:35,610 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-19 05:04:35,610 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-19 05:04:35,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 05:04:35,610 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-19 05:04:35,610 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-19 05:04:35,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 05:04:35,611 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-19 05:04:35,611 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-19 05:04:35,611 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-19 05:04:35,611 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-19 05:04:35,611 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-08-19 05:04:35,611 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-19 05:04:35,612 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-19 05:04:35,612 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-19 05:04:35,612 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-19 05:04:35,612 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-19 05:04:35,612 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-19 05:04:35,612 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-19 05:04:35,612 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-19 05:04:35,613 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-19 05:04:35,613 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-19 05:04:35,613 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-19 05:04:35,613 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-19 05:04:35,613 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-19 05:04:35,613 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-19 05:04:35,613 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-19 05:04:35,614 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-19 05:04:35,614 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-19 05:04:35,614 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 05:04:35,614 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-19 05:04:35,614 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-19 05:04:35,614 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-19 05:04:35,615 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-19 05:04:35,615 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-19 05:04:35,615 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-19 05:04:35,615 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-19 05:04:35,615 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-19 05:04:35,615 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-19 05:04:35,615 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-08-19 05:04:35,616 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-19 05:04:35,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 05:04:35,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 05:04:35,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 05:04:36,795 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 05:04:36,795 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-19 05:04:36,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 05:04:36 BoogieIcfgContainer [2020-08-19 05:04:36,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 05:04:36,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 05:04:36,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 05:04:36,806 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 05:04:36,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 05:04:34" (1/3) ... [2020-08-19 05:04:36,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a04480d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 05:04:36, skipping insertion in model container [2020-08-19 05:04:36,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:04:35" (2/3) ... [2020-08-19 05:04:36,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a04480d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 05:04:36, skipping insertion in model container [2020-08-19 05:04:36,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 05:04:36" (3/3) ... [2020-08-19 05:04:36,810 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product58.cil.c [2020-08-19 05:04:36,820 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 05:04:36,829 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 05:04:36,843 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 05:04:36,865 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 05:04:36,866 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 05:04:36,866 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 05:04:36,866 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 05:04:36,866 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 05:04:36,867 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 05:04:36,867 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 05:04:36,867 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 05:04:36,890 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states. [2020-08-19 05:04:36,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-19 05:04:36,900 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:04:36,901 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:04:36,902 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:04:36,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:04:36,907 INFO L82 PathProgramCache]: Analyzing trace with hash -298144076, now seen corresponding path program 1 times [2020-08-19 05:04:36,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:04:36,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1155861810] [2020-08-19 05:04:36,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:04:37,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:37,641 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 05:04:37,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:04:37,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:37,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:04:37,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:37,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:04:37,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:37,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:04:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:37,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:04:37,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:37,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 05:04:37,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:37,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 05:04:37,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:37,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:04:37,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1155861810] [2020-08-19 05:04:37,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:04:37,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-19 05:04:37,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466273616] [2020-08-19 05:04:37,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-19 05:04:37,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:04:37,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-19 05:04:37,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-19 05:04:37,825 INFO L87 Difference]: Start difference. First operand 190 states. Second operand 3 states. [2020-08-19 05:04:39,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:04:39,026 INFO L93 Difference]: Finished difference Result 338 states and 432 transitions. [2020-08-19 05:04:39,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-19 05:04:39,028 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-08-19 05:04:39,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:04:39,041 INFO L225 Difference]: With dead ends: 338 [2020-08-19 05:04:39,041 INFO L226 Difference]: Without dead ends: 182 [2020-08-19 05:04:39,046 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-19 05:04:39,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-08-19 05:04:39,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 147. [2020-08-19 05:04:39,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-08-19 05:04:39,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 170 transitions. [2020-08-19 05:04:39,154 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 170 transitions. Word has length 46 [2020-08-19 05:04:39,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:04:39,155 INFO L479 AbstractCegarLoop]: Abstraction has 147 states and 170 transitions. [2020-08-19 05:04:39,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-19 05:04:39,155 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 170 transitions. [2020-08-19 05:04:39,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-19 05:04:39,159 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:04:39,159 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:04:39,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 05:04:39,160 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:04:39,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:04:39,160 INFO L82 PathProgramCache]: Analyzing trace with hash -491113124, now seen corresponding path program 1 times [2020-08-19 05:04:39,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:04:39,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1435250683] [2020-08-19 05:04:39,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:04:39,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:39,484 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 05:04:39,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:04:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:39,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:04:39,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:39,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:04:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:39,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:04:39,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:39,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:04:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:39,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 05:04:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:39,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-19 05:04:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:39,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:04:39,528 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1435250683] [2020-08-19 05:04:39,528 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:04:39,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 05:04:39,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686814178] [2020-08-19 05:04:39,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 05:04:39,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:04:39,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 05:04:39,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-19 05:04:39,531 INFO L87 Difference]: Start difference. First operand 147 states and 170 transitions. Second operand 4 states. [2020-08-19 05:04:39,918 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:04:40,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:04:40,842 INFO L93 Difference]: Finished difference Result 267 states and 319 transitions. [2020-08-19 05:04:40,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-19 05:04:40,843 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-08-19 05:04:40,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:04:40,847 INFO L225 Difference]: With dead ends: 267 [2020-08-19 05:04:40,847 INFO L226 Difference]: Without dead ends: 166 [2020-08-19 05:04:40,849 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-19 05:04:40,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-08-19 05:04:40,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 138. [2020-08-19 05:04:40,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-08-19 05:04:40,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 158 transitions. [2020-08-19 05:04:40,890 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 158 transitions. Word has length 47 [2020-08-19 05:04:40,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:04:40,891 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 158 transitions. [2020-08-19 05:04:40,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 05:04:40,891 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 158 transitions. [2020-08-19 05:04:40,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-19 05:04:40,893 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:04:40,893 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:04:40,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 05:04:40,894 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:04:40,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:04:40,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1388977157, now seen corresponding path program 1 times [2020-08-19 05:04:40,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:04:40,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [355121911] [2020-08-19 05:04:40,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:04:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:41,184 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 05:04:41,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:04:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:41,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:04:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:41,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:04:41,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:41,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:04:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:41,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:04:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:41,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 05:04:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:41,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-19 05:04:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:41,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:04:41,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [355121911] [2020-08-19 05:04:41,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:04:41,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-19 05:04:41,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046627348] [2020-08-19 05:04:41,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 05:04:41,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:04:41,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 05:04:41,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-19 05:04:41,262 INFO L87 Difference]: Start difference. First operand 138 states and 158 transitions. Second operand 8 states. [2020-08-19 05:04:41,597 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 05:04:41,931 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 05:04:42,180 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 05:04:42,411 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 05:04:43,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:04:43,661 INFO L93 Difference]: Finished difference Result 280 states and 337 transitions. [2020-08-19 05:04:43,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-19 05:04:43,666 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-08-19 05:04:43,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:04:43,669 INFO L225 Difference]: With dead ends: 280 [2020-08-19 05:04:43,669 INFO L226 Difference]: Without dead ends: 166 [2020-08-19 05:04:43,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-19 05:04:43,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-08-19 05:04:43,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 138. [2020-08-19 05:04:43,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-08-19 05:04:43,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 157 transitions. [2020-08-19 05:04:43,729 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 157 transitions. Word has length 52 [2020-08-19 05:04:43,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:04:43,729 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 157 transitions. [2020-08-19 05:04:43,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 05:04:43,730 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 157 transitions. [2020-08-19 05:04:43,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-19 05:04:43,739 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:04:43,740 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:04:43,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 05:04:43,740 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:04:43,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:04:43,740 INFO L82 PathProgramCache]: Analyzing trace with hash 105794737, now seen corresponding path program 1 times [2020-08-19 05:04:43,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:04:43,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [32315133] [2020-08-19 05:04:43,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:04:43,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:44,134 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 05:04:44,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:04:44,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:44,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:04:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:44,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:04:44,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:44,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:04:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:44,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:04:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:44,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-19 05:04:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:44,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:04:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:44,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:04:44,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:44,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-19 05:04:44,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:44,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-08-19 05:04:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:44,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:04:44,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [32315133] [2020-08-19 05:04:44,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:04:44,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 05:04:44,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610243373] [2020-08-19 05:04:44,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 05:04:44,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:04:44,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 05:04:44,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-19 05:04:44,237 INFO L87 Difference]: Start difference. First operand 138 states and 157 transitions. Second operand 6 states. [2020-08-19 05:04:44,537 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 05:04:45,720 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:04:46,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:04:46,330 INFO L93 Difference]: Finished difference Result 377 states and 459 transitions. [2020-08-19 05:04:46,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 05:04:46,332 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-08-19 05:04:46,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:04:46,337 INFO L225 Difference]: With dead ends: 377 [2020-08-19 05:04:46,337 INFO L226 Difference]: Without dead ends: 263 [2020-08-19 05:04:46,342 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-19 05:04:46,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-08-19 05:04:46,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 220. [2020-08-19 05:04:46,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-08-19 05:04:46,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 248 transitions. [2020-08-19 05:04:46,397 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 248 transitions. Word has length 65 [2020-08-19 05:04:46,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:04:46,398 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 248 transitions. [2020-08-19 05:04:46,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 05:04:46,398 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 248 transitions. [2020-08-19 05:04:46,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-08-19 05:04:46,399 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:04:46,399 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:04:46,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 05:04:46,400 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:04:46,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:04:46,400 INFO L82 PathProgramCache]: Analyzing trace with hash -830596407, now seen corresponding path program 1 times [2020-08-19 05:04:46,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:04:46,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [196962911] [2020-08-19 05:04:46,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:04:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:46,713 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 05:04:46,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:04:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:46,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:04:46,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:46,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:04:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:46,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:04:46,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:46,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:04:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:46,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-19 05:04:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:46,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:04:46,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:46,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:04:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:46,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:04:46,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:46,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:04:46,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:46,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-19 05:04:46,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:46,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-19 05:04:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:46,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:04:46,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [196962911] [2020-08-19 05:04:46,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:04:46,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-19 05:04:46,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281027497] [2020-08-19 05:04:46,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 05:04:46,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:04:46,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 05:04:46,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-08-19 05:04:46,843 INFO L87 Difference]: Start difference. First operand 220 states and 248 transitions. Second operand 10 states. [2020-08-19 05:04:47,280 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:04:47,522 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:04:47,742 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:04:48,336 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:04:48,576 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:04:48,802 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:04:49,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:04:49,829 INFO L93 Difference]: Finished difference Result 460 states and 553 transitions. [2020-08-19 05:04:49,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 05:04:49,831 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 79 [2020-08-19 05:04:49,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:04:49,834 INFO L225 Difference]: With dead ends: 460 [2020-08-19 05:04:49,834 INFO L226 Difference]: Without dead ends: 264 [2020-08-19 05:04:49,835 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-08-19 05:04:49,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-08-19 05:04:49,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 224. [2020-08-19 05:04:49,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-08-19 05:04:49,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 252 transitions. [2020-08-19 05:04:49,880 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 252 transitions. Word has length 79 [2020-08-19 05:04:49,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:04:49,881 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 252 transitions. [2020-08-19 05:04:49,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 05:04:49,881 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 252 transitions. [2020-08-19 05:04:49,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-08-19 05:04:49,882 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:04:49,882 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:04:49,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 05:04:49,882 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:04:49,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:04:49,882 INFO L82 PathProgramCache]: Analyzing trace with hash 2078167495, now seen corresponding path program 1 times [2020-08-19 05:04:49,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:04:49,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1036618151] [2020-08-19 05:04:49,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:04:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:50,259 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 05:04:50,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:04:50,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:50,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:04:50,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:50,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:04:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:50,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:04:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:50,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:04:50,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:50,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-19 05:04:50,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:50,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:04:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:50,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:04:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:50,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:04:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:50,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:04:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:50,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-19 05:04:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:50,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-19 05:04:50,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:50,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:04:50,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1036618151] [2020-08-19 05:04:50,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:04:50,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-19 05:04:50,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405314588] [2020-08-19 05:04:50,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-19 05:04:50,372 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:04:50,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-19 05:04:50,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-08-19 05:04:50,373 INFO L87 Difference]: Start difference. First operand 224 states and 252 transitions. Second operand 12 states. [2020-08-19 05:04:50,745 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 05:04:51,045 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 05:04:51,285 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 05:04:51,533 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 05:04:52,042 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:04:52,919 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 05:04:53,228 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:04:53,508 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:04:53,789 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:04:54,091 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:04:54,344 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:04:55,758 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 05:04:56,160 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 05:04:56,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:04:56,833 INFO L93 Difference]: Finished difference Result 789 states and 997 transitions. [2020-08-19 05:04:56,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-19 05:04:56,833 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 79 [2020-08-19 05:04:56,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:04:56,839 INFO L225 Difference]: With dead ends: 789 [2020-08-19 05:04:56,840 INFO L226 Difference]: Without dead ends: 589 [2020-08-19 05:04:56,841 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-08-19 05:04:56,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2020-08-19 05:04:56,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 527. [2020-08-19 05:04:56,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2020-08-19 05:04:56,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 609 transitions. [2020-08-19 05:04:56,947 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 609 transitions. Word has length 79 [2020-08-19 05:04:56,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:04:56,947 INFO L479 AbstractCegarLoop]: Abstraction has 527 states and 609 transitions. [2020-08-19 05:04:56,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-19 05:04:56,947 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 609 transitions. [2020-08-19 05:04:56,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-19 05:04:56,951 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:04:56,951 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:04:56,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-19 05:04:56,952 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:04:56,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:04:56,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1201141545, now seen corresponding path program 1 times [2020-08-19 05:04:56,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:04:56,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [917609061] [2020-08-19 05:04:56,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:04:56,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:57,260 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 05:04:57,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:04:57,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:57,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:04:57,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:57,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:04:57,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:57,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:04:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:57,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:04:57,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:57,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 05:04:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:57,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 05:04:57,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:57,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:04:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:57,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:04:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:57,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:04:57,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:57,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:04:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:57,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:04:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:57,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:04:57,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:57,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:04:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:57,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:04:57,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:57,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 05:04:57,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:57,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:04:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:57,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-19 05:04:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:57,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-08-19 05:04:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:57,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:04:57,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:57,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:04:57,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:57,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:04:57,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:57,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:04:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:57,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-08-19 05:04:57,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:57,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-08-19 05:04:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:04:57,535 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 11 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-08-19 05:04:57,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [917609061] [2020-08-19 05:04:57,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 05:04:57,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-19 05:04:57,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520478068] [2020-08-19 05:04:57,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-19 05:04:57,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:04:57,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-19 05:04:57,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-08-19 05:04:57,539 INFO L87 Difference]: Start difference. First operand 527 states and 609 transitions. Second operand 13 states. [2020-08-19 05:04:57,902 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 05:04:58,547 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 05:04:59,110 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:04:59,375 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-19 05:04:59,632 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:04:59,865 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:05:00,110 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:05:00,378 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-19 05:05:00,659 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:05:00,911 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:05:02,621 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 05:05:02,873 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:05:03,117 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:05:03,339 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:05:03,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:05:03,884 INFO L93 Difference]: Finished difference Result 937 states and 1177 transitions. [2020-08-19 05:05:03,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-19 05:05:03,885 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 154 [2020-08-19 05:05:03,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:05:03,889 INFO L225 Difference]: With dead ends: 937 [2020-08-19 05:05:03,890 INFO L226 Difference]: Without dead ends: 434 [2020-08-19 05:05:03,894 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=205, Invalid=851, Unknown=0, NotChecked=0, Total=1056 [2020-08-19 05:05:03,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-08-19 05:05:03,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 380. [2020-08-19 05:05:03,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2020-08-19 05:05:03,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 443 transitions. [2020-08-19 05:05:03,990 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 443 transitions. Word has length 154 [2020-08-19 05:05:03,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:05:03,990 INFO L479 AbstractCegarLoop]: Abstraction has 380 states and 443 transitions. [2020-08-19 05:05:03,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-19 05:05:03,990 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 443 transitions. [2020-08-19 05:05:03,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-08-19 05:05:03,993 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:05:03,993 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:05:03,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-19 05:05:03,994 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:05:03,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:05:03,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1319690960, now seen corresponding path program 1 times [2020-08-19 05:05:03,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:05:03,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [40264633] [2020-08-19 05:05:03,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:05:04,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:04,249 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 05:05:04,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:05:04,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:04,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:05:04,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:04,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:05:04,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:04,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:05:04,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:04,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:05:04,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:04,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 05:05:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:04,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 05:05:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:04,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:05:04,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:04,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:05:04,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:04,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:05:04,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:04,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:04,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:04,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:05:04,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:04,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:04,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:04,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:04,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:05:04,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:04,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 05:05:04,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:04,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:04,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:04,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-19 05:05:04,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:04,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-08-19 05:05:04,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:04,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:05:04,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:04,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:04,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:04,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 05:05:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:04,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-19 05:05:04,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:04,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-19 05:05:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:04,424 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-19 05:05:04,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [40264633] [2020-08-19 05:05:04,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 05:05:04,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-19 05:05:04,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441112137] [2020-08-19 05:05:04,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 05:05:04,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:05:04,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 05:05:04,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-19 05:05:04,426 INFO L87 Difference]: Start difference. First operand 380 states and 443 transitions. Second operand 10 states. [2020-08-19 05:05:06,042 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:05:06,304 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:05:06,570 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:05:06,793 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:05:07,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:05:07,158 INFO L93 Difference]: Finished difference Result 704 states and 848 transitions. [2020-08-19 05:05:07,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 05:05:07,160 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 149 [2020-08-19 05:05:07,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:05:07,164 INFO L225 Difference]: With dead ends: 704 [2020-08-19 05:05:07,165 INFO L226 Difference]: Without dead ends: 411 [2020-08-19 05:05:07,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-19 05:05:07,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2020-08-19 05:05:07,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 385. [2020-08-19 05:05:07,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-08-19 05:05:07,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 448 transitions. [2020-08-19 05:05:07,244 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 448 transitions. Word has length 149 [2020-08-19 05:05:07,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:05:07,246 INFO L479 AbstractCegarLoop]: Abstraction has 385 states and 448 transitions. [2020-08-19 05:05:07,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 05:05:07,246 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 448 transitions. [2020-08-19 05:05:07,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-08-19 05:05:07,250 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:05:07,250 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:05:07,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-19 05:05:07,251 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:05:07,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:05:07,251 INFO L82 PathProgramCache]: Analyzing trace with hash 810217870, now seen corresponding path program 1 times [2020-08-19 05:05:07,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:05:07,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [174026936] [2020-08-19 05:05:07,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:05:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:07,547 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 05:05:07,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:05:07,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:07,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:05:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:07,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:05:07,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:07,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:05:07,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:07,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:05:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:07,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 05:05:07,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:07,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 05:05:07,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:07,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:05:07,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:07,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:05:07,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:07,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:05:07,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:07,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:07,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:07,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:05:07,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:07,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:07,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:07,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:07,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:05:07,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:07,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 05:05:07,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:07,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:07,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-19 05:05:07,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:07,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-08-19 05:05:07,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:07,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:05:07,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:07,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:07,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:07,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 05:05:07,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:07,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-19 05:05:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:07,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-19 05:05:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:07,728 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-19 05:05:07,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [174026936] [2020-08-19 05:05:07,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 05:05:07,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-19 05:05:07,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394221014] [2020-08-19 05:05:07,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 05:05:07,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:05:07,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 05:05:07,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-19 05:05:07,731 INFO L87 Difference]: Start difference. First operand 385 states and 448 transitions. Second operand 10 states. [2020-08-19 05:05:08,069 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 05:05:09,693 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 05:05:09,942 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 05:05:10,165 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 05:05:10,389 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 05:05:10,664 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:05:11,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:05:11,091 INFO L93 Difference]: Finished difference Result 418 states and 500 transitions. [2020-08-19 05:05:11,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-19 05:05:11,092 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 149 [2020-08-19 05:05:11,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:05:11,095 INFO L225 Difference]: With dead ends: 418 [2020-08-19 05:05:11,096 INFO L226 Difference]: Without dead ends: 415 [2020-08-19 05:05:11,097 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-19 05:05:11,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-08-19 05:05:11,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 385. [2020-08-19 05:05:11,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-08-19 05:05:11,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 447 transitions. [2020-08-19 05:05:11,168 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 447 transitions. Word has length 149 [2020-08-19 05:05:11,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:05:11,169 INFO L479 AbstractCegarLoop]: Abstraction has 385 states and 447 transitions. [2020-08-19 05:05:11,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 05:05:11,169 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 447 transitions. [2020-08-19 05:05:11,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-19 05:05:11,171 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:05:11,171 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:05:11,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-19 05:05:11,172 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:05:11,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:05:11,172 INFO L82 PathProgramCache]: Analyzing trace with hash -488644751, now seen corresponding path program 1 times [2020-08-19 05:05:11,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:05:11,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [258652147] [2020-08-19 05:05:11,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:05:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:11,457 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 05:05:11,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:05:11,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:11,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:05:11,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:11,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:05:11,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:11,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:05:11,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:11,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:05:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:11,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 05:05:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:11,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 05:05:11,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:11,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:05:11,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:11,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:05:11,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:11,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:05:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:11,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:11,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:05:11,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:11,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:11,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:11,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:11,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:05:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:11,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 05:05:11,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:11,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:11,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:11,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-19 05:05:11,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:11,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-08-19 05:05:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:11,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:05:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:11,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:11,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 05:05:11,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:11,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:05:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:11,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-19 05:05:11,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:11,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-19 05:05:11,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:11,644 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-08-19 05:05:11,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [258652147] [2020-08-19 05:05:11,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 05:05:11,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-08-19 05:05:11,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037803211] [2020-08-19 05:05:11,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-19 05:05:11,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:05:11,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-19 05:05:11,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-08-19 05:05:11,647 INFO L87 Difference]: Start difference. First operand 385 states and 447 transitions. Second operand 12 states. [2020-08-19 05:05:12,029 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 05:05:12,597 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 05:05:13,409 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 05:05:13,725 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 05:05:13,972 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 05:05:14,237 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 05:05:14,530 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:05:14,772 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:05:15,990 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 05:05:16,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:05:16,748 INFO L93 Difference]: Finished difference Result 922 states and 1160 transitions. [2020-08-19 05:05:16,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-08-19 05:05:16,749 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 153 [2020-08-19 05:05:16,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:05:16,754 INFO L225 Difference]: With dead ends: 922 [2020-08-19 05:05:16,754 INFO L226 Difference]: Without dead ends: 624 [2020-08-19 05:05:16,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 56 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=259, Invalid=611, Unknown=0, NotChecked=0, Total=870 [2020-08-19 05:05:16,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2020-08-19 05:05:16,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 528. [2020-08-19 05:05:16,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-08-19 05:05:16,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 621 transitions. [2020-08-19 05:05:16,848 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 621 transitions. Word has length 153 [2020-08-19 05:05:16,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:05:16,848 INFO L479 AbstractCegarLoop]: Abstraction has 528 states and 621 transitions. [2020-08-19 05:05:16,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-19 05:05:16,849 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 621 transitions. [2020-08-19 05:05:16,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-08-19 05:05:16,852 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:05:16,853 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:05:16,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-19 05:05:16,853 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:05:16,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:05:16,854 INFO L82 PathProgramCache]: Analyzing trace with hash 700598337, now seen corresponding path program 2 times [2020-08-19 05:05:16,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:05:16,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [379042062] [2020-08-19 05:05:16,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:05:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,143 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 05:05:17,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:05:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:05:17,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:05:17,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:05:17,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:05:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 05:05:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 05:05:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:05:17,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:05:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:05:17,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:05:17,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:17,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:17,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:05:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 05:05:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-19 05:05:17,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:05:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:05:17,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 05:05:17,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:05:17,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 05:05:17,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-08-19 05:05:17,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-08-19 05:05:17,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:05:17,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:17,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 05:05:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:05:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-08-19 05:05:17,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-08-19 05:05:17,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:17,434 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 49 proven. 25 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-08-19 05:05:17,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [379042062] [2020-08-19 05:05:17,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 05:05:17,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-19 05:05:17,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984611434] [2020-08-19 05:05:17,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-19 05:05:17,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:05:17,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-19 05:05:17,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-08-19 05:05:17,437 INFO L87 Difference]: Start difference. First operand 528 states and 621 transitions. Second operand 13 states. [2020-08-19 05:05:18,475 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 05:05:18,765 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 05:05:20,433 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 05:05:20,685 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:05:20,920 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:05:21,341 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-08-19 05:05:22,867 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 189 [2020-08-19 05:05:23,127 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-19 05:05:23,410 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:05:23,660 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:05:24,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:05:24,699 INFO L93 Difference]: Finished difference Result 1442 states and 1789 transitions. [2020-08-19 05:05:24,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-08-19 05:05:24,700 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 207 [2020-08-19 05:05:24,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:05:24,707 INFO L225 Difference]: With dead ends: 1442 [2020-08-19 05:05:24,707 INFO L226 Difference]: Without dead ends: 999 [2020-08-19 05:05:24,710 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 80 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=299, Invalid=961, Unknown=0, NotChecked=0, Total=1260 [2020-08-19 05:05:24,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2020-08-19 05:05:24,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 850. [2020-08-19 05:05:24,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 850 states. [2020-08-19 05:05:24,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 986 transitions. [2020-08-19 05:05:24,914 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 986 transitions. Word has length 207 [2020-08-19 05:05:24,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:05:24,915 INFO L479 AbstractCegarLoop]: Abstraction has 850 states and 986 transitions. [2020-08-19 05:05:24,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-19 05:05:24,915 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 986 transitions. [2020-08-19 05:05:24,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-08-19 05:05:24,919 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:05:24,919 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:05:24,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-19 05:05:24,920 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:05:24,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:05:24,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1257976449, now seen corresponding path program 1 times [2020-08-19 05:05:24,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:05:24,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1496806993] [2020-08-19 05:05:24,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:05:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,215 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 05:05:25,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:05:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:05:25,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:05:25,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:05:25,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:05:25,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 05:05:25,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 05:05:25,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:05:25,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:05:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:05:25,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:25,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:05:25,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:05:25,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 05:05:25,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-19 05:05:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:05:25,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:05:25,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 05:05:25,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:05:25,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 05:05:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-08-19 05:05:25,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-08-19 05:05:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:05:25,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:05:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 05:05:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:05:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-08-19 05:05:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-08-19 05:05:25,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:05:25,522 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 41 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-08-19 05:05:25,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1496806993] [2020-08-19 05:05:25,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 05:05:25,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-19 05:05:25,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500139191] [2020-08-19 05:05:25,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-19 05:05:25,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:05:25,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-19 05:05:25,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-08-19 05:05:25,525 INFO L87 Difference]: Start difference. First operand 850 states and 986 transitions. Second operand 13 states. [2020-08-19 05:05:26,081 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:05:26,305 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:05:26,532 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:05:27,890 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:05:28,119 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:05:28,375 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 05:05:28,601 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 05:05:28,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:05:28,908 INFO L93 Difference]: Finished difference Result 1133 states and 1322 transitions. [2020-08-19 05:05:28,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-19 05:05:28,909 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 207 [2020-08-19 05:05:28,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:05:28,910 INFO L225 Difference]: With dead ends: 1133 [2020-08-19 05:05:28,910 INFO L226 Difference]: Without dead ends: 0 [2020-08-19 05:05:28,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2020-08-19 05:05:28,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-19 05:05:28,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-19 05:05:28,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-19 05:05:28,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-19 05:05:28,914 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 207 [2020-08-19 05:05:28,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:05:28,915 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-19 05:05:28,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-19 05:05:28,915 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-19 05:05:28,915 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-19 05:05:28,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-19 05:05:28,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-19 05:05:30,545 WARN L193 SmtUtils]: Spent 863.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 246 [2020-08-19 05:05:31,528 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 246 [2020-08-19 05:05:31,876 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 245